Page 1. Tetrahedron Letters,Vol.26,No.l3,pp 1655-1658,1985 0040-4039/85 $3.00 + .OO Printed in Great Britain 01985 Persamon Press Ltd. ... 10 11 12 13 14 15 *x ... X = Br x = Cl 0- /\ I - )+@I MeO--@I /\ Br -P- - a) Carried out in the presence of 7 mol % of Pd-catalysts at 2.5 mA/cm'. ...